***** Guitar Project Jigs, Tools & Techniques Online Resources Archives OLF Video Page Library of plans MP3 Library Inlay Class
Offical Luthiers Forum





And our community proudly sponsored by:

RC Tonewoods | Stewart MacDonald | LuthiersForum
TasmanianTonewoods | OLF | OLF MERCH
Luthier Suppliers | Pacific Coast Woods | ELEVATE
OLF X | Tasmanian Acoustic Tonewood | Luthiers Forum Store!
Luthiers Forum | OLF Facebook | AVAIL SPACE
OLF | Alaska Specialty Woods | A.Hix Tonewood
Duke of Pearl | Birkonium CNC | Space




Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sun Nov 24, 2024 11:01 am


Board index » Instrument Restoration and Repair

All times are UTC - 5 hours





Post new topic Reply to topic  Page 1 of 1
  [ 9 posts ] 
  Print view Previous topic | Next topic 
Author Message
rmack
 Post subject: Brace Repair
PostPosted: Fri Jun 23, 2023 1:43 pm 
Offline
Walnut
Walnut

Joined: Sat Jan 16, 2021 7:10 pm
Posts: 4
First name: Ron
Last Name: Mack
City: Brooklyn
State: NY
Zip/Postal Code: 11226
Country: USA
Focus: Build
Status: Amateur
Good afternoon,

It's been a while since I've posted on the forum. I hope everyone is doing well.

I built a Weissenborn style guitar well over a decade ago, but did a few things incorrectly.

Also, the fish glue I used failed mainly on the back, but also a couple of braces on the top. When I removed the some of the braces I didn't remove the braces cleanly, so some of the mahogany is on the braces.

I'm not sure how I should approach this problem. All suggestions would be appreciated.


You do not have the required permissions to view the files attached to this post.

Top
 Profile  
 
Barry Daniels
 Post subject: Re: Brace Repair
PostPosted: Fri Jun 23, 2023 4:49 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Aug 19, 2005 4:02 am
Posts: 3263
Location: The Woodlands, Texas
First name: Barry
Last Name: Daniels
Clean up (sand, scrape or plane) the joint's surfaces, both on the bottom of the braces and on the back. Then re-glue.

While you are in there you might want to grab ahold of the other braces and give a good twist to make sure they don't come loose too.


These users thanked the author Barry Daniels for the post (total 2): Kbore (Fri Jul 28, 2023 3:30 pm) • Smylight (Fri Jun 23, 2023 10:09 pm)
Top
 Profile  
 
rmack
 Post subject: Re: Brace Repair
PostPosted: Fri Jun 23, 2023 8:11 pm 
Offline
Walnut
Walnut

Joined: Sat Jan 16, 2021 7:10 pm
Posts: 4
First name: Ron
Last Name: Mack
City: Brooklyn
State: NY
Zip/Postal Code: 11226
Country: USA
Focus: Build
Status: Amateur
Barry Daniels wrote:
Clean up (sand, scrape or plane) the joint's surfaces, both on the bottom of the braces and on the back. Then re-glue.

While you are in there you might want to grab ahold of the other braces and give a good twist to make sure they don't come loose too.



Thank you. Very much appreciate it.
Top
 Profile  
 
Smylight
 Post subject: Re: Brace Repair
PostPosted: Fri Jun 23, 2023 10:12 pm 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Fri Mar 17, 2017 8:42 pm
Posts: 400
First name: Pierre
Last Name: Castonguay
City: Québec, Qc
Country: Canada
Focus: Repair
Status: Professional
I remember reading here about fish having the same properties as HHG as far as being able to reactivate with the application of fresh glue. Anyone with experience on the subject?


Pierre
Guitares Torvisse

_________________
Pierre Castonguay
Top
 Profile  
 
Hesh
 Post subject: Re: Brace Repair
PostPosted: Sat Jun 24, 2023 3:41 am 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Fri Nov 02, 2007 9:49 am
Posts: 13386
Location: Ann Arbor, Michigan
First name: Hesh
Last Name: Breakstone
City: Ann Arbor
State: Michigan
Country: United States
Status: Professional
This is another example of fish glue failures and that should be pointed out.

Guitars are not always kept in ideal environments.... an understatement and this is why we don't use fish glue.

I'd use Titebond original for the repairs.


These users thanked the author Hesh for the post (total 2): Kbore (Fri Jul 28, 2023 3:31 pm) • rmack (Sun Jun 25, 2023 9:43 pm)
Top
 Profile  
 
Lou Thier
 Post subject: Re: Brace Repair
PostPosted: Mon Jun 26, 2023 3:41 pm 
Offline
Mahogany
Mahogany

Joined: Thu Oct 21, 2021 4:23 pm
Posts: 43
First name: Yeaux
Last Name: Maumma
Focus: Repair
Status: Professional
Hesh wrote:
This is another example of fish glue failures and that should be pointed out.

Guitars are not always kept in ideal environments.... an understatement and this is why we don't use fish glue.

I'd use Titebond original for the repairs.

Amen


Sent from my iPhone using Tapatalk


These users thanked the author Lou Thier for the post: Hesh (Mon Jun 26, 2023 10:53 pm)
Top
 Profile  
 
jfmckenna
 Post subject: Re: Brace Repair
PostPosted: Wed Jun 28, 2023 3:36 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6256
Location: Virginia
How did the fish glue fail? Did it unglue itself due to high humidity?

It's hard to see how thick that mahogany is on the braces but what you might be able to do is use a very sharp chisel and try to remove it with one clean shot then you can glue it back in place.
Top
 Profile  
 
rmack
 Post subject: Re: Brace Repair
PostPosted: Sat Jul 01, 2023 12:51 pm 
Offline
Walnut
Walnut

Joined: Sat Jan 16, 2021 7:10 pm
Posts: 4
First name: Ron
Last Name: Mack
City: Brooklyn
State: NY
Zip/Postal Code: 11226
Country: USA
Focus: Build
Status: Amateur
jfmckenna wrote:
How did the fish glue fail? Did it unglue itself due to high humidity?

It's hard to see how thick that mahogany is on the braces but what you might be able to do is use a very sharp chisel and try to remove it with one clean shot then you can glue it back in place.


Hi,
Sorry everyone for the delayed response, but I had to replace my keyboard. Thanks to everyone that replied.

The mahogony isn't very thick. I remember the glue failing shortly after completing the build.
I'm using Titebond this time around.


These users thanked the author rmack for the post: jfmckenna (Wed Jul 05, 2023 1:32 pm)
Top
 Profile  
 
rmack
 Post subject: Re: Brace Repair
PostPosted: Sat Jul 01, 2023 12:52 pm 
Offline
Walnut
Walnut

Joined: Sat Jan 16, 2021 7:10 pm
Posts: 4
First name: Ron
Last Name: Mack
City: Brooklyn
State: NY
Zip/Postal Code: 11226
Country: USA
Focus: Build
Status: Amateur
Hesh wrote:
This is another example of fish glue failures and that should be pointed out.

Guitars are not always kept in ideal environments.... an understatement and this is why we don't use fish glue.

I'd use Titebond original for the repairs.



I'm using Titebond this time around. for sure. Thank you.


These users thanked the author rmack for the post: Hesh (Sun Jul 02, 2023 4:19 am)
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 9 posts ] 

Board index » Instrument Restoration and Repair

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 24 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com